27217785

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 53352000

約数和(自身を除く): 26134215

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1949, 1995, 2793, 4655, 5847, 9745, 13643, 13965, 29235, 37031, 40929, 68215, 95501, 111093, 185155, 204645, 259217, 286503, 477505, 555465, 777651, 1296085, 1432515, 1814519, 3888255, 5443557, 9072595, 27217785]

約数ペア:

[(1, 27217785), (3, 9072595), (5, 5443557), (7, 3888255), (15, 1814519), (19, 1432515), (21, 1296085), (35, 777651), (49, 555465), (57, 477505), (95, 286503), (105, 259217), (133, 204645), (147, 185155), (245, 111093), (285, 95501), (399, 68215), (665, 40929), (735, 37031), (931, 29235), (1949, 13965), (1995, 13643), (2793, 9745), (4655, 5847)]